diff options
author | Hans de Goede <hdegoede@redhat.com> | 2015-03-20 20:11:12 +0100 |
---|---|---|
committer | Felipe Balbi <balbi@ti.com> | 2015-05-26 10:46:54 -0500 |
commit | 6cc2af6d50204e8a1034ecd162378ceea22b09e8 (patch) | |
tree | da62fadb96bb790ebbdc9ce0b1fbe7fbcaf4a2f3 /drivers/usb/musb | |
parent | 0cb74b3dc45a5448161eb481d4709cdda2a889fd (diff) | |
download | op-kernel-dev-6cc2af6d50204e8a1034ecd162378ceea22b09e8.zip op-kernel-dev-6cc2af6d50204e8a1034ecd162378ceea22b09e8.tar.gz |
usb: musb: Make busctl_offset an io-op rather then a define
The Allwinner (sunxi) implementation of the musb has its busctl registers
indexed by the MUSB_INDEX register rather then in a flat address space.
This commit turns MUSB_BUSCTL_OFFSET from a macro into an io-op which can
be overridden from the platform ops.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r-- | drivers/usb/musb/musb_core.c | 34 | ||||
-rw-r--r-- | drivers/usb/musb/musb_core.h | 5 | ||||
-rw-r--r-- | drivers/usb/musb/musb_host.c | 12 | ||||
-rw-r--r-- | drivers/usb/musb/musb_io.h | 2 | ||||
-rw-r--r-- | drivers/usb/musb/musb_regs.h | 63 |
5 files changed, 68 insertions, 48 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index a3bc06d..fea3402f 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -251,6 +251,11 @@ static u32 musb_indexed_ep_offset(u8 epnum, u16 offset) return 0x10 + offset; } +static u32 musb_default_busctl_offset(u8 epnum, u16 offset) +{ + return 0x80 + (0x08 * epnum) + offset; +} + static u8 musb_default_readb(const void __iomem *addr, unsigned offset) { return __raw_readb(addr + offset); @@ -2052,6 +2057,11 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) else musb->io.fifo_offset = musb_default_fifo_offset; + if (musb->ops->busctl_offset) + musb->io.busctl_offset = musb->ops->busctl_offset; + else + musb->io.busctl_offset = musb_default_busctl_offset; + if (musb->ops->readb) musb_readb = musb->ops->readb; if (musb->ops->writeb) @@ -2332,18 +2342,18 @@ static void musb_save_context(struct musb *musb) musb_readb(epio, MUSB_RXINTERVAL); musb->context.index_regs[i].txfunaddr = - musb_read_txfunaddr(musb_base, i); + musb_read_txfunaddr(musb, i); musb->context.index_regs[i].txhubaddr = - musb_read_txhubaddr(musb_base, i); + musb_read_txhubaddr(musb, i); musb->context.index_regs[i].txhubport = - musb_read_txhubport(musb_base, i); + musb_read_txhubport(musb, i); musb->context.index_regs[i].rxfunaddr = - musb_read_rxfunaddr(musb_base, i); + musb_read_rxfunaddr(musb, i); musb->context.index_regs[i].rxhubaddr = - musb_read_rxhubaddr(musb_base, i); + musb_read_rxhubaddr(musb, i); musb->context.index_regs[i].rxhubport = - musb_read_rxhubport(musb_base, i); + musb_read_rxhubport(musb, i); } } @@ -2411,18 +2421,18 @@ static void musb_restore_context(struct musb *musb) musb_writeb(epio, MUSB_RXINTERVAL, musb->context.index_regs[i].rxinterval); - musb_write_txfunaddr(musb_base, i, + musb_write_txfunaddr(musb, i, musb->context.index_regs[i].txfunaddr); - musb_write_txhubaddr(musb_base, i, + musb_write_txhubaddr(musb, i, musb->context.index_regs[i].txhubaddr); - musb_write_txhubport(musb_base, i, + musb_write_txhubport(musb, i, musb->context.index_regs[i].txhubport); - musb_write_rxfunaddr(musb_base, i, + musb_write_rxfunaddr(musb, i, musb->context.index_regs[i].rxfunaddr); - musb_write_rxhubaddr(musb_base, i, + musb_write_rxhubaddr(musb, i, musb->context.index_regs[i].rxhubaddr); - musb_write_rxhubport(musb_base, i, + musb_write_rxhubport(musb, i, musb->context.index_regs[i].rxhubport); } musb_writeb(musb_base, MUSB_INDEX, musb->context.index); diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index b8372f6..4b886d0 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -67,7 +67,6 @@ struct musb_ep; #include "musb_dma.h" #include "musb_io.h" -#include "musb_regs.h" #include "musb_gadget.h" #include <linux/usb/hcd.h> @@ -191,6 +190,7 @@ struct musb_platform_ops { void (*ep_select)(void __iomem *mbase, u8 epnum); u16 fifo_mode; u32 (*fifo_offset)(u8 epnum); + u32 (*busctl_offset)(u8 epnum, u16 offset); u8 (*readb)(const void __iomem *addr, unsigned offset); void (*writeb)(void __iomem *addr, unsigned offset, u8 data); u16 (*readw)(const void __iomem *addr, unsigned offset); @@ -444,6 +444,9 @@ struct musb { #endif }; +/* This must be included after struct musb is defined */ +#include "musb_regs.h" + static inline struct musb *gadget_to_musb(struct usb_gadget *g) { return container_of(g, struct musb, g); diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 4a19c81..26c65e6 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -595,9 +595,9 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, u8 epnum) /* target addr and (for multipoint) hub addr/port */ if (musb->is_multipoint) { - musb_write_rxfunaddr(musb->mregs, epnum, qh->addr_reg); - musb_write_rxhubaddr(musb->mregs, epnum, qh->h_addr_reg); - musb_write_rxhubport(musb->mregs, epnum, qh->h_port_reg); + musb_write_rxfunaddr(musb, epnum, qh->addr_reg); + musb_write_rxhubaddr(musb, epnum, qh->h_addr_reg); + musb_write_rxhubport(musb, epnum, qh->h_port_reg); } else musb_writeb(musb->mregs, MUSB_FADDR, qh->addr_reg); @@ -836,9 +836,9 @@ static void musb_ep_program(struct musb *musb, u8 epnum, /* target addr and (for multipoint) hub addr/port */ if (musb->is_multipoint) { - musb_write_txfunaddr(mbase, epnum, qh->addr_reg); - musb_write_txhubaddr(mbase, epnum, qh->h_addr_reg); - musb_write_txhubport(mbase, epnum, qh->h_port_reg); + musb_write_txfunaddr(musb, epnum, qh->addr_reg); + musb_write_txhubaddr(musb, epnum, qh->h_addr_reg); + musb_write_txhubport(musb, epnum, qh->h_port_reg); /* FIXME if !epnum, do the same for RX ... */ } else musb_writeb(mbase, MUSB_FADDR, qh->addr_reg); diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h index 8a57a6f..17a80ae 100644 --- a/drivers/usb/musb/musb_io.h +++ b/drivers/usb/musb/musb_io.h @@ -47,6 +47,7 @@ * @fifo_offset: platform specific function to get fifo offset * @read_fifo: platform specific function to read fifo * @write_fifo: platform specific function to write fifo + * @busctl_offset: platform specific function to get busctl offset */ struct musb_io { u32 quirks; @@ -55,6 +56,7 @@ struct musb_io { u32 (*fifo_offset)(u8 epnum); void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf); void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf); + u32 (*busctl_offset)(u8 epnum, u16 offset); }; /* Do not add new entries here, add them the struct musb_io instead */ diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h index edfc730..cff5bcf 100644 --- a/drivers/usb/musb/musb_regs.h +++ b/drivers/usb/musb/musb_regs.h @@ -300,9 +300,6 @@ #define MUSB_RXHUBADDR 0x06 #define MUSB_RXHUBPORT 0x07 -#define MUSB_BUSCTL_OFFSET(_epnum, _offset) \ - (0x80 + (8*(_epnum)) + (_offset)) - static inline void musb_write_txfifosz(void __iomem *mbase, u8 c_size) { musb_writeb(mbase, MUSB_TXFIFOSZ, c_size); @@ -364,76 +361,84 @@ static inline u16 musb_read_hwvers(void __iomem *mbase) return musb_readw(mbase, MUSB_HWVERS); } -static inline void musb_write_rxfunaddr(void __iomem *mbase, u8 epnum, +static inline void musb_write_rxfunaddr(struct musb *musb, u8 epnum, u8 qh_addr_reg) { - musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXFUNCADDR), - qh_addr_reg); + musb_writeb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR), + qh_addr_reg); } -static inline void musb_write_rxhubaddr(void __iomem *mbase, u8 epnum, +static inline void musb_write_rxhubaddr(struct musb *musb, u8 epnum, u8 qh_h_addr_reg) { - musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBADDR), + musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBADDR), qh_h_addr_reg); } -static inline void musb_write_rxhubport(void __iomem *mbase, u8 epnum, +static inline void musb_write_rxhubport(struct musb *musb, u8 epnum, u8 qh_h_port_reg) { - musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBPORT), + musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBPORT), qh_h_port_reg); } -static inline void musb_write_txfunaddr(void __iomem *mbase, u8 epnum, +static inline void musb_write_txfunaddr(struct musb *musb, u8 epnum, u8 qh_addr_reg) { - musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXFUNCADDR), - qh_addr_reg); + musb_writeb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR), + qh_addr_reg); } -static inline void musb_write_txhubaddr(void __iomem *mbase, u8 epnum, +static inline void musb_write_txhubaddr(struct musb *musb, u8 epnum, u8 qh_addr_reg) { - musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBADDR), + musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBADDR), qh_addr_reg); } -static inline void musb_write_txhubport(void __iomem *mbase, u8 epnum, +static inline void musb_write_txhubport(struct musb *musb, u8 epnum, u8 qh_h_port_reg) { - musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBPORT), + musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBPORT), qh_h_port_reg); } -static inline u8 musb_read_rxfunaddr(void __iomem *mbase, u8 epnum) +static inline u8 musb_read_rxfunaddr(struct musb *musb, u8 epnum) { - return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXFUNCADDR)); + return musb_readb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR)); } -static inline u8 musb_read_rxhubaddr(void __iomem *mbase, u8 epnum) +static inline u8 musb_read_rxhubaddr(struct musb *musb, u8 epnum) { - return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBADDR)); + return musb_readb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_RXHUBADDR)); } -static inline u8 musb_read_rxhubport(void __iomem *mbase, u8 epnum) +static inline u8 musb_read_rxhubport(struct musb *musb, u8 epnum) { - return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBPORT)); + return musb_readb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_RXHUBPORT)); } -static inline u8 musb_read_txfunaddr(void __iomem *mbase, u8 epnum) +static inline u8 musb_read_txfunaddr(struct musb *musb, u8 epnum) { - return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXFUNCADDR)); + return musb_readb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR)); } -static inline u8 musb_read_txhubaddr(void __iomem *mbase, u8 epnum) +static inline u8 musb_read_txhubaddr(struct musb *musb, u8 epnum) { - return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBADDR)); + return musb_readb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_TXHUBADDR)); } -static inline u8 musb_read_txhubport(void __iomem *mbase, u8 epnum) +static inline u8 musb_read_txhubport(struct musb *musb, u8 epnum) { - return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBPORT)); + return musb_readb(musb->mregs, + musb->io.busctl_offset(epnum, MUSB_TXHUBPORT)); } #else /* CONFIG_BLACKFIN */ |